Answer:
Natural boundary
Explanation:
A natural border is a physical and natural barrier that separates two places. In this context, two countries. Some examples of natural borders includes rivers, mountains, desert, and oceans
The Dominican republic and haiti are two countries that are separated by a great valley. Both countries share an island.
A,B,C and F are all for the US the Rest are for Russia
The first recorded people on Crete were the minoans around the year 2000 B.C.E
Hope this helps
